Since bees and butterflies both pollen are flowers, the growth (population) of flowering plants would become less common without the pollen being spread.
Fossil fuel<span> is a general term for buried combustible geologic deposits of organic materials, </span>formed<span> from decayed plants and animals that have been converted to crude oil, </span>coal<span>, natural gas, or heavy oils by exposure to heat and pressure in the earth's crust over hundreds of millions of years.</span>
there are already many japanese plants, so not the iris. I don't see any water features here and I have no idea what a fence will do. Also I don't see a reason for a spirit gate, so the answer should be a water feature.
